A 2.0 kg lunchbox is sent sliding over a frictionless surface, in the positive direction of an
Question:
A 2.0 kg lunchbox is sent sliding over a frictionless surface, in the positive direction of an x axis along the surface. Beginning at time t = 0, a steady wind pushes on the lunchbox in the negative direction of the x axis. Figure shows the position x of the lunchbox as a function of time t as the wind pushes on the lunchbox. From the graph, estimate the kinetic energy of the lunchbox at
(a) t = 1.0 s and
(b) t = 5.0 s.
(c) How much work does the force from the wind do on the lunchbox from t = 1.0 s to t = 5.0s?
3 4 5 6 7 t (s) 2 8. (u) x
Step by Step Answer:
a We can easily fit the curve to a concavedownward parabola xt...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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